Phantom alert works with your smart phone and Garmin/GPS to alert you
of checkpoints such as Speed Traps, Dui, School Zones, red light
cameras and more.

Sounds like it is wrong to know where these are. Police think it
helps as you will slow down or not drive at all. Think about the
only way home after a few drinks. You might have to pass a check
point. $99 is much better than thousands of dollars in tickets
and lawsuits later if you actually hurt something or some one.